Error Re-Flashing Jetson Xavier NX eMMC after booting from NVMe

I have Jetson Xavier NX 16GB eMMC, and i want to boot the root from NVMe. at first, the boot was fine then suddenly the artifacts shows on display and the board was crashed. After that, the board is failed to reboot and I want to reflash the board using Jetpack 4.6.2 but always failed with these line:

Error: Return value 8
Command tegrarcm_v2 --download bct_bootrom br_bct_BR.bct --download bct_mb1 mb1_bct_MB1_sigheader.bct.encrypt --download bct_mem mem_rcm_sigheader.bct.encrypt
Failed flashing t186ref.

I already do the flash from SDK Manager and using this script

sudo ./flash.sh jetson-xavier-devkit-emmc mmcblk0p1

and both resulting the same error result. I can’t find the solution online, is there any other solution to reflash my board?

please share the full log of your error instead of only 3 lines.

Sorry, here’s the log
SDKM_logs_JetPack_4.6.2_Linux_for_Jetson_Xavier_NX_modules_2022-11-23_19-29-08.zip (135.8 KB)

Could you also share the device log when you hit flash failure?

Based on the tutorial, the usb port supposed to be detected on /dev/ttyUSB0 on my laptop when i run sudo dmesg --follow, but whet i plugged the usb, there is no serial mounted to the port, is it a bad sign?

and when i plugged the power, sudo dmesg --follow resulting in this messages:

[23016.519232] usb 2-1: new full-speed USB device number 75 using xhci_hcd
[23016.651247] usb 2-1: device descriptor read/64, error -71
[23016.887240] usb 2-1: device descriptor read/64, error -71
[23017.123151] usb 2-1: new full-speed USB device number 76 using xhci_hcd
[23017.251250] usb 2-1: device descriptor read/64, error -71
[23017.487229] usb 2-1: device descriptor read/64, error -71
[23017.595315] usb usb2-port1: attempt power cycle
[23018.247189] usb 2-1: new full-speed USB device number 77 using xhci_hcd
[23018.247356] usb 2-1: Device not responding to setup address.
[23018.455349] usb 2-1: Device not responding to setup address.
[23018.663203] usb 2-1: device not accepting address 77, error -71
[23018.791207] usb 2-1: new full-speed USB device number 78 using xhci_hcd
[23018.791388] usb 2-1: Device not responding to setup address.
[23018.999368] usb 2-1: Device not responding to setup address.
[23019.207166] usb 2-1: device not accepting address 78, error -71
[23019.207244] usb usb2-port1: unable to enumerate USB device